SB2026051811 - Anolis OS update for python-jwcrypto

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Main Vulnerability Database SB2026051811

SB2026051811 - Anolis OS update for python-jwcrypto

Published: May 18, 2026

Security Bulletin ID SB2026051811
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper handling of highly compressed data (CVE-ID: CVE-2026-39373)

CWE-ID: CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper handling of highly compressed data in the deserialize function when processing crafted JWE tokens with ZIP compression. A remote attacker can send a specially crafted JWE token to cause a denial of service.

Memory-constrained systems are more likely to be affected.


Remediation

Install update from vendor's website.

References